smith



(No Medef.)

J; T. SMXTH.

LOCK POR REVOLVERS.

Nmssmzl. Pgammdreb, 9, 1886,.

"ren @reins .Toux fr. sin'rn, or

.tireur rries..

toer: Fon neveu/Ess'.

`23IECIFICA'.IJCOJN' forming part of Letters Patent No. 336,021, dated February 9, 1886.

Application (iled Riny 1, liv-'5.

"To @ZZ whom, it mfr/,1,1 concern: l that l', Jonx'l. Sirrrn, of'ltoch l `fall, in the county of Middlesex und Stole oi' `(.ionneetient, have invented :i new linprovenient in Revolvers; and do hereby dechire the following, when taken in connection with accompanying drawings and letters of reier` ence marked thereon, to be n full, clear, :nul exact description of the saune, and which sind drawings constitute part oi' this specilirntion, and represent, in-

`Figurel, n sectional side View, showing so `much ofthe revolverns will illust rute my iinprovement; Fig. 2, a. rear view ol the eylindermatehet; Fig. 3, the triggeiwgunrd. philo detached,- Fig. y11:,a'top View of the triggerguard plate; Fig. 5, on under side View ol' the triggcnguardfplate:is inserted in the freine; Fig. `(i, n modification in the arrangement ol" the; auxiliary trigger. This invention relaties to nn improvement, inithnt class of revolvers which n re constructed so that the hammer may be cocked either by I' means of rthe trigger, to be ivh-.it is culled j' self-cooking, or inny bc cocked liy :ipplying the thumb 'to the hnnnner only, and in y i which the cylinder is rotated hy n'pnwl in l l l l l l i connection with the trigger. ln revelversA thus constructed the first portion of the pull ofthe trigger,-wl1ilecooking the linnnncr, zit the same4 time revolves the eyli nder through` the pzuvl, which is hung to the trigger in reniof `its pivot, and the hammer must not he dischnrged until nl'ter the cylinder hns heen bronght to the required position, it. follows that there ninst be n movement lo the trigger .beyond that which is required to rointe the cylinder; hence the pziwl which operates upon the ratchet on the end of the cylinder musi;

d escape from the ratchet betere the trigger con be pnlledmthntis, so that the iuovcn'ient of ,y the cylinder indy Kconse belorc the hummer is discharged. `This continued escape ot' the `l pnwl from therotchct wears upon ille shonlders of` the `rntehet, :is Well ns the noso ol' thepawl, so that after linie repairs must he ngiznle ortho cylinder will not `rezieh its true i position with `relation to the hnnnncr and bnr l reir To ohvinte'to a eensidernhle extentthis w ditienlty, more oriess plnyisnllowed between the cylinder :ind thetlog which 'loci-:s it,:-:o

` Serial .\"o. lli-1529", (No nnnhl) that the cylinder is uol positively held in its position in line u ith the bnl-rel.

The principal ohiectot my invention isto provide l'or n positive :1nd rigid lock for the cylinder when in line with tl avoid the necessity ol' thc escupe ironi the ratchet, wluerehy tl l'erred to in the prcrious consi ruelion will hc olivinted; and ii,- eonsists in the construction ot the parts, ns hereinnl'ler described, and more pzntienlnrly recited in the elniins.

A represents the l'rnine, which is of usual construction; l), the cylinder, :1nd C the hnniincr, also ot' usunl construction and arrange ment, except :is to th I ratchet l) :1nd lockingnotches o.

lnslend o( consi rooting the nilh :L recess erndunlly opening` into tilleul troni the :ulvn ncingside, :is ind iented in broken lines nl b, Fig. .'l, Leut aplnin Sqnnresded rceess, nud the ratchet l make simply u phi-in toothed rntehct, seen in Fig.

Y 1C is the principal trigger, huurt,r upon a fl, in the usual nninner ol' hunging .llie entre n lever, 4 1?, whieh is hung to the hnnnner upon n pivot, e, sind so that :is the trigger is pulled the honnnerivill he thrown t0 its cocked position, :is indicated in broken lines, and in the nsnril manner, the inuinspring H being connected to the lever (i in renr ol" its pi vot, and so that as the trigger is 'pulled the` ham mer will be throwir to its full-cocked position, ns seen in hrolufnlines, Fig. l. To the brig ger, in renr of its pivot, thc powl I is hung upon its own pivot f. The trigger and the pnwl l'nre both hung` in the trigger-guard plate J. The gunrdplnte is constructed to be introduced into a correspoinling reeessf in the under side ol' the freine, ns seen in Fig'. l, and ns shown detached i n Fig. 3. ,in the guard.` pluie, in roar ol." the trigger, is n recess, g, into which the lower end ol' the pziwl passes :is the trigger is thrown forward. l`he forward side o1' this recess is nnule cnnrshnpcd, :isnt ii, and so that :is thetriggcr is thrown l'orwnrd and the pnwl lineliwnrd it rides over ther-:un lz, nud ns the pivotfoi' the pnwl posses below the snid enni Je the iront side ol' the pnwl will work over the coni li," find. he thereby thrown lineli into the position indienied in Figs l locking-notches pivot, a trigger.

ie llnrrel, :ind

trigger provided with 'at dog, F, to en-` le wen r before rc- I OC) and 3; but so soon as the trigger is pulled so far as to carry the pivot of the pawl above the cam h then the spring of the pawl will cause its nose to be thrown forward, as indicated in broken lines, Fig. 3, into engagement with the ratchet, and so that a continued pull of the trigger will cause the pawl to rise and correspondingly turn the cylinder one notch, and when the pawl and cylinder hm'e reached this point the trigger has arrived at its extreme rear position (indicated in broken lines, Fig. 3.) In the trigger-guard plate, and forwardy of the trigger, the cylinder-dog K is hung upon a pivot, i, and so as to swing up and down in'laivertical plane and toward and from the cylinder. The rear end of t-he dog is constructed with a nose, {,'adaptcd to enter one of the notches a in the cylinder, as seen in Fig. 1. Longitudinally in the doga trip-holt, m, is introduced, having a spring, il, within the dog, bearing against it, and so as to pro trude its rear end from the dog and toward ythe trigger'. On the trigger, forward of its pivot, is a projection, o, which, when the trigger is in its forward position, as indicated in Fig. l, stands just above the trip m when the dog K is in its locked position,

Athe cylinder,

y the cylinder.

. tion ofa spring, u.

and so that during the tirst part of the movement of the trigger, when pulled, the projection o will er1- gage the trip m and pull the dog down from as indicated in Fig. 3. This downward movement of the dog occurs while the pawl I is heilig thrown forward into engagement with the cylinder and has commenced its upward movement in turning the cylinder. Then the projection o escapes from the trip m and permits the dog to return, bringing its nose I onto the surface of the cylinder, andso that when the next recess a comes into line with the dog t-he nose will be forced into the recess under the action of the -spring r, andso as to positively engage This engagement of the dog with the cylinder occurs just as one chamber of the cylinder is brought into line with the barrel, and such engagement of the dog with the cylinder will prevent any further movenient ot' the pawl l, hence will also' prevent any further rear movement ofthe trigger. The dog li and the pawhwith the cylinder, therefore form a positive stop lo arrest the pull ot' the trigger at a predetermined point, and this arrest occurs at the time the hammer has been broughtto its full-cocked position. In the frame beneath the receiver the scar L is hung upon a pivot, s, its rear arm, t, adapted te 'engage a notch on the hammer under the ac- Forward of the pivot of the sear an arm, w, extends toward the back ofthe trigger, and in the principal trigger an auxiliary trigger, M, is hung upon a pivot, 2, one arm, 3, extending upward, and the other arm, 4, downward, and so that the loivcrarm may project beyond the front face ofthe triger. The arm Sextends upward, and so as to come beneath thcnose of the scar-arm w when the trigger is in its extreme rear position, as

indicatedin broken lines, Fig. ll \Vhen the hammer stands at the full-cock'position, the nose of the scar-arm w comes into a position forward of theupper end of the auxiliary trigger-arm 3, and so as to throw 4the lower arm, 4, of the auxiliary triggerforwa'rd, and so' as to project beyond the front face ofthe principal trigger, as indicated in broken lines. As the parts now stand the principal trigger is locked in its extreme rear position; but the projecting arm 4 of the auxiliary trigger serves as a finger-piece, and so that the linger applied thereto to throw the lower arm rearward will force the upper arm, 3, forwardyand, acting like a ca'in upon the sear,will turn the sear to release the hammer and permit its discharge.-

XVhen .the hammer 1s cocked, by applying the hand to it directly, instead of tothe trigger, the trigger is thrown rearward, as in the usual construction of self-cocking rcvolvers. The paw] I as well as the dog K both act the same as if the trigger were directly pulled, and the trigger comes to its same extreme rear and locked position as the hammer arrives at its full-cock position, and engages with the rear arm of lthe Sear. New, if the finger be applied to the auxiliary trigger, the ham mer'will be discharged, as for firing; butin using the revolver as self-cooking the finger will he held close upon the trigger and so that the auxiliary t-rigger will he held in its turned position-.- that is, with the lower arm, ,4, flush with the front face of the trigger, and then as the principal trigger approaches its extreme rear and locked position the upper end of the arm 3 of the 'auxiliary ,trigger will strike the forward end or nose of the arm w of the sear and throw it out of engagement with the hammer to permit the hammer to tly forward. In this manipulation the operation isthe same as in common self-cooking revolvers, except that the cylinder and triggerare brought to a deadlock before the hammer is discharged. After discharge the trigger returns under the action ofits spring in the usual manner, and in so doing the projection o strikes the under side ofthe IOO IIO

trip m, and because ofthe inclination of one or both will readily force the trip into the dog, so that the projection o will pass lis rear end to a position above it, ready for engagement 'therewith when the trigger is next pulled. As

the trigger returns the pawl strikes the ,cam h and is thrown backward away from the ratchet. By this construction there is no over motion roquired for the principal trigger to discharge the arm; hence there is no occasion for the rig pawl to escape from theratchet, as in revolvers where such over motion is necessary, and the usual wear between the pawl and ratchet/is avoided and by the positive locking -of the cylinder there is no possibility of its displacement at the time of ring. part of the pull of the trigger,

Upon the rsty and while thedog \K is out of engagement with the cylinder,

and before the pawl has engaged the ratchet of the cylinder, the half-cock notch 5 of the hammer engages the scar, so Vthat at that time the cylinder may be removed in theusual manner for Aremoving cylinders from the frame;Y The dog K is hung inthe triggerl Thenoved with the trigger-guard when desired,

and without disturbing either of the said parts-a very great 'convenience whenever it -is desired t examine the mechanism of the revolver. f v

While I prefer to throw the'pawl rearward under the 'action of the cam h in the triggerguard plate, the pawl .may work through the recoil-plate in the usual manner, it only being necessary in so doing that the trigger shall have a rear movement suticient to take the locking-dog K frm its engagement with the cylinder before the nose ofthe pawl strikes its tooth in the ratchet. Instead'of employing the dog to engage th cylinder, as described, eitherof several known cylinder-locking dogs may be employed.

i While I prefer to hang the auxiliary trigger in the principal trigger, it may be hung directly in the guard, as seen in Fig. 6, and so that when the trigger is brought to its extreme rear or locked position the auxiliary I trigger will project beyond the frontv face ot" the principal trigger, as seen in l iig.'6.l

I 'claim- Y 1. In aV revolver, the combination of the hammer, the principal trigger Ehung in thel receiver, and in the usual connection with the hammer for selfcocking, the sear L, hung beneath the hammer,onearm adapted to engage the full-cock notch of the hammer, the other arm extended forward, and the pawl I, hung to the trigger in rear of its pivot and adapted to engage the ratchet` of the cylinder, with an auxiliarytrigger hung in the principal trig-` ger, one arm of which projects beyond the, front face of the principal trigger when said principal trigger is in its cxtreme rear position and the other arm into engagement with the scar, substantially as described.

2. Iii a revolver, the combination of the hammer, the principal trigger E, hung in the receiver, and in the usual connection with the hammer for seltcocking, the scar L, bling beneath the hannner,one arm adapted toengage the full-.cock notch of the hammer, the other arm extended forward, and the pawl I, hung to the triggerlin rear of its pivot and adapted to engage the ratchet of thecylinder, with an anx et, D, at its rear end, the dog K,ar`ranged be-Y neath the cylinder, its nose l adapted to en. gage a corresponding notch in the cylinder, spring-trip min said dog, "the trigger E,hung in rear of said dog and constructed with a forward projection, o, adapted to engage said trip, and the pawl I, hung to the trigger in rear of its pivot and adapted to engage the ratchet on the cylinder, with the auxiliary trigger 3 4, hung in the principal trigger and sea'r between said auxiliary trigger, and hammer, substantial] y as described.

4. The combination of the hammer, the cylinder constructed with the ratchet at its rear end, the trigger E, the pawl I, hung constructed with the recess y, into which the hinged end of the pawl may pass, thesaid recess constructed with a cam, h', to act upon thereto in rear of its pivot, the trigger-plate said pawh'the cylinder-dog K, hung forward of the trigger, and trip m in said dog, the trigger constructed with a projection, o, Yextending toward said trip and so-as to act thereon in its downward movement, substantially as dey.y

5. The combination of the cylinder B,\ con` structed with notches-a,- corresponding to tllbIl chambers in the cylinder, and with a corresponding ratchet, D, at its rear end, the prin- 4roo Y cipal trigger E, cylinder-dog K, tripm insaid dog, the trigger constructed with aprojectiomo, adapted to iact upon said trip, cylinder-pawl I,y hung to the principal trigger in rear of` its pivot, the trigger-plate constructed with a recess, g, into which the hinged, end of said` pawl will pass, said recess constructed with a cam, h, forward of said pawl, the auxiliary v all hung in the trigger-guard plate, independf'i ent of the frame, and the said plate made detachable from the frame, substantially as described. Y

JOHN T. SMITH.

fitnessesz y SAMUEL S. WARNER, lllants WARNER.` 

